Door-operating means.



R. LORANG. DooB OPBRATINGMEANS. APPLICATION TILED PEB. 1, 1913,

Patented Feb. 3, 1914.

To all whom it may conc-emi: :Il

* En STATES PATENT" Runomn (Loriano, or CHICAGO, iLLINoIs.

` ibpoR-'ornanaine MEANS;

-Be it` known that I, Ituinonrn Loriano.,v a` citizenof the United States, residing at Chicago, in the county 'of Cook and' State "of Illinois, have invented certain new land useuljlmprovements in Door-Operating Means, ,n off which- CatOrD-f'- i" jMyinvention relates to rimprovements in door operating means 'and has especial reference tof-means for operating sliding doors. `f ,pO'neP f1/'the .objectsfofy my invention is to provide-meansifor simultaneously operating tivo-,cooperating slidingdo'ors to open and tb'lbseaithem. f 1

the following is a specifiobject vide',v` in said operating means, f an-ini'tially operable lever or handle, which shall require aextent of movementto move the doorsfaqrelatively large distance and at a relatively high velocity. Y p

Y bjpects of my inven-` tionIWill become readily apparent to persons skilled'in the arty from a consideration of the following description lwhen taken in conjunction With-fthe drawing, wherein,

@Figure lysis 'a front elevation o-a' p td'ivhich my door-operating 'llmechan'is shown applied, in theillustration;Figif2 an enlarged rear view of the upper panelof" the piano casing; Fig. 3'isa plan View of the panel. n '1 In all the vieWsthe same reference char-y acters indicate lsimilar parts.

, 4'Ihe iano case 10 is provided with a'pair of sli-'ing doors 11- and 12 which control access to achamber containing a musicroll of Va self-playing piano'. i The chamber is contained back ofthe upper panel 13 and access may be 'had thereto through the opening or aperture 14C which `is closable by the doors 11 and 12. -iThe sliding` doors are guided on the.panelboard by cleats 15 and 16v in the usual manner... v

When the piano is rto 'be played, it is de'-` sirable that the doors-11A and 12 should lbe Vquickly and easily opened for accessto the. mechanism contained Within :the chamber, closed by the doors] To this endl provide. the handle 17 Which-is shown.attheright'.l` hand side of the aperture in the front upper panel'` and the connecting mechanism Within the chamber requires' the handle 17 to be moved lessthanO degrees inorder` to fully open the doors orto close them. vIn i Y l Patented Febg; Appueatiqri mearebmary 1,1913. seminmiaeao. p i

both positions of the handlefa'reshownin ydotted lines. The handle-Eis 'connected to a studV 18 which passes t-hroughti.thek front panel-board 13 which in'turnisiconnected to a lever arm 19. The arm 19 isguided in its movement by the guide "strap'20 and at its free end is connected to a link 21 whichY inl' turn is pivotally connected to t-he door 12 by a cleat 22 and also to a rod 23. :The rod 23 is' adapted to be axially moved inthe groove 24 Which isl located within the guid= ing strip or 'cleat 16.. The right hand "end of the rod 23 is connectedto a `link 25 and this link is connected to afcentrally pivotedarm 26 the `other end of which is connected to a link 27 which in turn is pivotallyconnected to acleat 28 secured to the .door 11i;

IVhen they doo-rs Y11 `and 12 are closedgtheV `operating parts, representedin full'fluin'es in l Fig. 2,' are in the positions shoivngjlat' Which time the operating handle lliszfiii substan-N tially vertical position. .'.To open thejdoors t r equal t0 [12 '.villfbe openedto their full extent, shown vby vertical dotted, linesn[figgahd thus.`

V'expose'zthe entirev aperture'that is made in the' panel13.- When the doors are "ope ved the operating parts yoccupyth'e :poslti: s shown in'dotted rlines in Fig. 2. `Iofelose the `11 and 12itl is only necessarytomove the i doors 11 and 12, it is only necessaryto move the handle 17 back to its vertical position.

By this mechanism the doors 11 and 12 are I' quickly opened by amininium movement of the operating handle 17 and a minimum resistance is imposed by the moving mechanism to the operators eitortsin manipulating the doors, due tothe particular correlation of the -interengaging links,` leversrfand rod which moves Vin the groOve'parallel tov tionwhat I claiin is? Having Shown and described lmy inven- Ina device for operating tvvo' doors slid-'l ing oppositelyon a door supporting frame,

Vt-heapertu're which is closedfbyithedoorm ses.A i

'a vlink,wcon'necting the free end ofthe 'lever i Wit-nthe adjacent door; a similar lever and link arrangement, for thek opposite door, the lever for the latter 'door being pivoted int-er- Amediate'itsends; a third link', pivoted to the ast menioned lever an the end not oon-y nested' Wlth the door ink, and :L rod sldhund n the presence of two Witnesses. able in a groove n the fime on a line paral- T lel with the movement of'the doors and co11- i RUDOLPH LORB G' 5 neotng the rst mentioned door with the In the presence ofl thi1d` link at the end not connected to the l V. LINN ALLEN,

lever. MARYA F. ALLEN.

In 'testimony whereof I hereunto set my- 

